The IRFU will work with the branches and clubs to assess the situation regarding unsold tickets with a view to reaching an equitable solution to this difficult problem.
It was further agreed that ticket allocations to branches and clubs for the 2011 RBS 6 Nations matches will not be affected by sales of tickets for the GUINNESS Series.
Commenting on the decisions, IRFU Chief Executive Philip Browne said: "There has been slower than expected demand for this autumn's GUINNESS Series. There are a number of elements impacting on this situation since the sales structure was drawn up in March 2010, including a further significant deterioration in the economic climate.
"While the situation varies from club to club we are aware that a number of clubs are still in possession of tickets for matches.
"In the interests of Irish rugby, the IRFU, the branches and the clubs must continue to work hard to sell these tickets right up to kick-off for each match.
"The IRFU do not want to see clubs suffer financial hardship as a result of being unable to sell ticket packages for this GUINNESS Series and consequently will only seek immediate payment for tickets sold.
"On completion of the Series, the IRFU will work with the branches and clubs to assess the effect of the reduced demand for tickets.
"In addition the IRFU will undertake a comprehensive review of its entire ticket sales strategy, which includes price tiering, bundling and distribution channels. As part of this review, which will commence immediately on completion of the November internationals, it will consult widely with its stakeholders."