Reasoning
Across multiple independent sources (Digital Project Manager: Advanced; CRM.org: High; Trustpilot: High; Software Advice: High) the workflow automation complexity for Bitrix24 is consistently rated at a high level. TechRadar notes some capability for custom workflows but its dominant stance is low, and PCMag mentions governance features rather than a complexity level. Since the majority of domains converge on high/advanced, and one domain’s nuance (custom workflows) does not outweigh the overall consensus, the canonical value is set to High.