Document Sequence not generating for newly create AR Transactions Type

Summary:

Document Sequence not generating for newly create AR Transactions Type but system not generating Document Sequence even though all the setups defined correctly.
Content (please ensure you mask any confidential information):

Document Sequence not generating for newly create AR Transactions Type but system not generating Document Sequence even though all the setups defined correctly.

Specify ledger options > Accounting and document enabled at Legal Entity level, enabled for Receivables Module.

AR Transaction type defined

Manage Document Sequence Categories defined & system generated Category automatically after AR transaction Created

Manage Receivables Document Sequences assigned to above category.

Manage Receivable System Options: Document generation level is set to "When Completed".