SAP MM – PO-Scheduling Agreement

Scheduling Agreement in SAP

1. Create PR (ME51n), 10013744
2. Create SA with reference to Pr (ME31L), 5500000132
3. Print / transmit agreement to vendor (ME9L)
4. Maintain delivery schedule (ME38)
5. Print / transmit delivery schedule to vendor (ME9E)
6. Goods receipt schedule date (MIGO)

How to blocking Schedule Agreement to vendor ?, Using Block in SA