A system error has occured while locking

[Former Member]

Message no. M3021 : A system error has occured while locking

I get this message in TCODE MM42 (IS RETAIL) after mass updating articles using TCODE MM46.

The lock table size was increased from 4 MB to 10 MB and still the issue occurs. It looks the lock table can store only 3600 entries, is there a way to increase number of entries.

Thanks

Jagadhish Natarajan

[Former Member]

First, is this mass update going to happen on reguarly?

If no - you may want to further increase enque/table_size until it can finish this one-time run of the mass update.

If yes - you may want to work with your SAP basis guy and read note 13907. From your side, you may need to reduce the volume of this mass update. From the basis side, they need to determine a proper size for the enqueue table size.

[Former Member]

Thanks for your reply

The enque/table_size was increased and restared the system and still the same issue occurs

The mass update is not going to be a regular activity

[Former Member]

This does gets tricky in Retail enviroment, set enque/table_size to maximum (check RZ11) and monitor the statistics in SM12. This is all that can be done to support large updates.

Cheers,

Nisch