MIRO GL Problum

Hi SAP Gurus,

When i post Miroits giving Error msg. Enter a gl account.

Actually asset purchased threw PO, while doing PO it Correctly pick the GL Account, after completion of other proceedings while posting miro document its giving error msg Enter GL account.

Already i checked the PO and Enter the GL Account at that time it issues one more msg. that gl is post automatically.

plz do needful