Create A1 register for subscription only #10361

It is not possible to link two A1 records for a company, for example, power of attorney and A1 of the company.

However, when exporting invoices, when selecting the option to generate them as PDFs, the next setting is the signature, with the option to Sign as Accountant or Sign as Client.

When the user wants to sign one day as an accountant and another day as a client, he will have to keep changing the company's registration, which is unfeasible.

Therefore, create a Registration option with A1 for signature only.