The below is a guide regarding transaction line items recommended limits:

 

Transactions submitted through the user interface:

• 500 lines per transaction

Transactions submitted CSV import or web services:

• 1000 lines per transaction

Journal Entries submitted through the user interface or web services:

• 1000 lines

Journal Entries submitted through CSV Import:

• 10,000 lines

These recommended limits assume that there is very limited to no line validation scripting on the records. In most cases, transactions with less lines will result in performance issues when scripting is used in line validations.