Document Approval Workflow Automation

I'm looking for a skilled freelancer to help automate our document approval process, specifically for invoices.

Key Requirements:
- Experience with DATEV and ALBIS
- Automate the invoice approval workflow, linking invoices to names and monetary value positions in DATEV
- Integrate with our existing systems, particularly handling documents derived from the German platform ALBIS
- Ensure user-friendly interface and experience
- Provide detailed integration documentation and support for maintenance
- German-speaking freelancer preferred for effective communication

Ideal Skills and Experience:
- Experience in workflow automation
- Familiarity with document management systems
- Strong technical skills in integration
- Excellent problem-solving abilities