West Ham face a hearing two days after the Barclays Premier League season finishes to see if they will be allowed a UEFA licence for next term.
A panel appointed by an independent specialist dispute resolution body will decide on May 26 whether the club will be given the licence they need to play in the Europa League, should they finish seventh in the table.
The licence can only be granted when certain financial documents are submitted - but the likely change of ownership at Upton Park means West Ham have not been able to do that.
The Hammers are confident they will be in a position to supply all the required information ahead of the deadline.
A statement from the Football Association read: "The FA can confirm that, following initial consideration of West Ham United's application, the club has not to date been granted a UEFA licence to compete in European competition next season should they qualify.
"In accordance with set procedures, a final hearing will take place on May 26 before a panel appointed by Sport Resolutions - an independent specialist alternative dispute resolution body."
West Ham are confident they will be able to satisfy the requirements for a licence.
"Due to a number of factors, principally relating to a possible change of ownership of West Ham United, the club has not been able to submit certain financial information, but expects to be in a position to do so by May 26," their statement read.
It means that if West Ham finish seventh, they will not find out until two days later if they will be allowed in the revamped version of the UEFA Cup.
A Premier League statement added: "The Premier League respects the fact that there are set procedures in the matter of West Ham's UEFA Licence application and that a final outcome will not be known until after the season has finished."
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