Information we need to get started:
API Key
Login to lexoffice
Click on the following link to create your API key: https://app.lexoffice.de/addons/public-api
Click on Create API-Key
Select "Key with all rights (recommended)
Click next and enter "ToolMark" as Key description
Check the ToS and click Create API-Key
Copy the API-Key and enter it on ToolMark and click Save
Last but not least, we have the “TAX” option in our dashboard. This is for people who need to set a specific TAX status for their transactions, as easybill itself does not set the correct TAX status. Simply select the option you need for TAX and click “Save.”
"As an optional setting, you can specify whether your invoice should be generated as a draft or finalized immediately. You can also decide whether the invoice number should be included in the invoice – either in the invoice title or as free text in the invoice item."