No resolví el inconveniente. Adjunto una nota de sap que me resultó orientativa:
OSS notes
338032)
An attempt is made within Transaction Ml81 or Ml81N to accept a service entry sheet. The system generates an error log with error M7022: "PU ordered quantity is exceeded by X SU.". Consequently, acceptance is not possible.
Ml81, ML81N, service entry, M7022
In the respective purchase order, the field for overdelivery tolerance (EKPO-UEBTK) in the item detail is not set to 'unlimited'. This field must always be set to 'unlimited' for purchase orders for external services. The reason for this is that services are always managed with the unit of measure 1 SU on item level, that is, if this 'unlimited' flag is not set on item level, only one service entry sheet can be created. For the second, the above message is then displayed as the quantity 1 SU is now exceeded.
28/01/14, 19:12:33
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