Can you clarify what you mean?

Instead API use access to the database to receive data

Hi Andrew,

Are you asking if it is possible to receive/post data directly into the SQL database? Your answer to Toby still wasn't clear.

If this is your ask, then this is something we would not recommend you doing. The API/SDK make use of Business Objects and business rules to ensure no data will corrupt the SQL database and maintain the integrity of the data.

I would suggest speaking to your Business Partner/Developer about your options of importing/posting data into Sage.