By default rules are not getting fired, so I need to fire it explicitly via trigger or batch apex. Not sure how to achieve this. Need some guidance on this.

Thanks

Hello Everyone,

 I am facing some problem in locking the records. pls anyone know how to solve this problem then tell me. i want when i save some records and that records are visible in related list, but after 24hrs that records are disable for end users. how it is possible.

Thanks In advance.

System.DmlException: Update failed. First exception on row 0 with id a1H80000000LzOyEAK; first error: UNABLE_TO_LOCK_ROW, unable to obtain exclusive access to this record: []

Can anyone of you help me resolving this issue. Everyday i receive 15 emails about this error from ApexApplication [info@salesforce.com]. 

Thanks in advance.