Very sorry... I've been saying LLCH01 when I meant LLCS01.
I'm referring to the confirmation statement schema, and using it to file an electronic confirmation statement for a Limited Liability Partnership. On a separate post on this forum titled 'SIC codes on Incorporation ', @npreece said "As for LLPs and SIC Codes there should be validation on the latest schema preventing you from including SIC Codes in an LLP incorporation".
What I want to know is, do Companies House similarly apply validation to the confirmation statement schema preventing inclusion of SIC Codes in an LLP confirmation statement? The error message returned by Companies House suggests there is, and I'm just asking for that to be confirmed.