Are there any documented cases of prophecies, dreams or visions (Joel 2) in modern times (1900 - present) that are endorsed by a denomination? In Acts 2, during the Sermon at Pentecost, Peter reminded his astonished Jewish audience about the well-known prophecy uttered by the prophet Joel:

14 But Peter, standing with the eleven, lifted up his voice and addressed them: “Men of Judea and all who dwell in Jerusalem, let this be known to you, and give ear to my words. 15 For these people are not drunk, as you suppose, since it is only the third hour of the day. 16 But this is what was uttered through the prophet Joel:
17     “‘And in the last days it shall be, God declares,
          that I will pour out my Spirit on all flesh,
          and your sons and your daughters shall prophesy,
            and your young men shall see visions,
            and your old men shall dream dreams;
18     even on my male servants and female servants
            in those days I will pour out my Spirit, and they shall prophesy.

Many believe that we are currently in the end times, and that Joel 2:28-32's prophecy is especially true today. In fact, testimonies of people claiming to have received rapture dreams, visions or end times prophetic revelations from God abound in the internet. Just to give you an idea, there are several YouTube channels whose primary purpose is searching, collecting and reuploading other people's testimonial videos about prophetic dreams and visions: example 1, example 2, example 3, example 4, example 5. You may also try this search to find more testimonies that people keep uploading all the time.
That said, it is difficult to distinguish between genuine and fake cases. It's not always easy to tell whether someone is sharing a genuine experience or if they are simply making stuff up motivated by a craving for attention or revenue.
Question: Are there any documented cases of people receiving prophetic revelations, dreams or visions in modern times (1900 to the present), which are endorsed by a denomination that considers them credible, reliable and divinely inspired? How do such denominations verify the genuineness or falsity of a given prophecy, dream or vision?
The Bible speaks plainly about how to “validate” a genuine prophecy, dream or vision.   First, it must come to pass, but also, it must not promote false worship or detract from the word of God:

If a prophet or one who foretells by dreams, appears among you and announces to you a miraculous sign or wonder, and if the sign or wonder of which he has has spoken takes place, and he says, “Let us follow other gods”... that prophet or dreamer must be put to death because he preached rebellion against the Lord your God... (Deuteronomy 13:1-5).

Here is an example of a modern-day vision or prophecy that does not break that rule.
In 1968 an old woman age 90, from Valdres in Norway, had a vision from God.  A respected evangelist called Emanuel Minos spoke with this woman and wrote down what she described.  He thought it was so preposterous that he put the document in a drawer and left it there for 30 years.  Then he realised he had to share her vision with others.  The woman from Valdres was a very alert, reliable, awake and credible Christian, with a good reputation among all who knew her.  Remember, it was sometime around 1998 when this document came to light. This is part of what she saw:

I saw the time just before the coming of Jesus and the outbreak of the Third World War. I saw the events with my natural eyes. I saw the world like a kind of a globe and saw Europe, land by land. I saw Scandinavia. I saw Norway. I saw certain things that would take place just before the return of Jesus, and just before the last calamity happens, a calamity the likes of which we have never before experienced.



There will be peace between the super powers in the east and the west, and there will be a long peace. (Remember, this was in 1968 when the cold war was at its peak with the Cuban Crisis in 1962)




A lukewarmness without parallel will take hold of the Christians, a falling away from true, living Christianity. Christians will not be open for penetrating preaching. They will not, like in earlier times, want to hear of sin and grace, law and gospel, repentance and restoration. There will come a substitute instead: prosperity (happiness) Christianity...  Churches and prayer houses will be emptier and emptier.




There will be a moral disintegration that old Norway has never experienced the likes of. People will live together like married without being married...  TV will be filled with such horrible violence.   People will use it for entertainment.  We will see terrible scenes of murder and destruction one of the other, and this will spread in society.  Sex scenes will also be shown on the screen, the most intimate things that take place in a marriage.  (TV had just arrived in Norway in 1968)




People from poor countries will stream to Europe.  (In 1968 there was no such thing as immigration)  There will be so many of them that people will begin to dislike them and become hard with them. They will be treated like the Jews before the Second World War. Then the full measure of our sins will have been reached.  I will not see it, but you will. Then suddenly, Jesus will come and the Third World War breaks out. It will be a short war.


She concluded:

I am so glad that I will not see it, but when the time draws near, you must take courage and tell this. I have received it from God, and nothing of it goes against what the Bible tells.  The one who has his sins forgiven and has Jesus as Saviour and Lord is safe.
(Translated from German into English in an article in the magazine “Christian Information Service”)  http://www.inthebeginning.com/articles/norway1968.htm

Were these prophetic visions fulfilled?  Remember, this old lady from Norway had this vision in 1968.
Peace between the superpowers in the East and in the West: The “cold war” period is generally considered to span the 1947 Truman Doctrine (12 March 1947) to the 1991 Dissolution of the Soviet Union (26 December 1991). The Cuban Missile Crisis in October 1962 sparked genuine fear that it would result in a nuclear war between America and Russia.  Then, in November 1989, the unimaginable happened – the Berlin Wall came down, resulting in a distinct thaw between the east and west.  On 3 December 1989, Gorbachev and George H.W. Bush declared the Cold War over at the Malta Summit.  Source: https://en.wikipedia.org/wiki/Cold_War  and  https://en.wikipedia.org/wiki/Cold_War#Thaw_in_relations
Churches closing and the rise of the “Prosperity Gospel” – health and wealth style Christianity:   A 2015 analysis of the European Values Study in the Handbook of Children and Youth Studies identified a &quot;dramatic decline&quot; in religious affiliation across Europe from 1981 to 2008 – however, this Wikipedia article does not focus on specifics such as number of churches that have closed in Scandinavia: https://en.wikipedia.org/wiki/Decline_of_Christianity_in_various_countries
The view that many churches have closed in Europe since 1968 is probably supported by documented evidence, but I can’t find anything specific.  That church attendance has dropped due to apathy is also fairly obvious but difficult to quantify.  Pew Forum organisation is probably the best source: https://www.pewforum.org/2018/05/29/being-christian-in-western-europe/
Many healing evangelists of the 1940s and 1950s taught that faith could bring financial reward. Then a new prosperity-oriented teaching developed in the 1970s that differed from the one taught by Pentecostal evangelists of the 1950s.  During the 1960s, prosperity gospel teachers embraced televangelism and came to dominate religious programming in the United States. Source: https://en.wikipedia.org/wiki/Prosperity_theology#Televangelism
Moral disintegration and an increase in violence – proliferation of sexually explicit and violent television programmes:  In 1968 the number of television channels was quite low compared to the hundreds of channels now available.  Scenes of violent or sexual conduct were heavily censored.  Today, not only do television, video and films exploit both violence and sex, the world wide web has a deeply dark and sinister side.  Why, even “social media” is being used to pervert children.  Media is saturated with scenes of immorality and violence – and it’s all taken for granted, as being an acceptable form of entertainment.  Evidence can be found by turning on your television.
Mass immigration from people in poor countries into Europe: Causes for the displacement of people include natural disasters, conflict and economic poverty due to climate change.  The number of unofficial border crossings by sea and land detected by Frontex at the external borders of the EU peaked at a total of 141,051 in 2011.  The migrant crisis was part of a pattern of increased forced migration to Europe from other continents which is said to have begun in 2014.  At the peak of the crisis in 2015, the United Nations High Commissioner for Refugees (UNHCR) observed that the top three nationalities among over one million refugees arriving from the Mediterranean Sea were Syrian (46.7%), Afghan (20.9%) and Iraqi (9.4%).  According to the UNHCR, the EU countries with the biggest numbers of recognised refugees at the end of 2014 were France (252,264), Germany (216,973), Sweden (142,207) and the United Kingdom (117,161).  Source: https://en.wikipedia.org/wiki/European_migrant_crisis
I do not know which particular denomination this lady may have belonged to, only that she was a Christian.  In order to validate what she described, one only has to consult recent history.