If you apply for unemployment certificate in Guangzhou, it will not have much impact on your Foshan social security, but now the provincial labor security network and social security network are networking. If the Guangzhou Labor and Social Security Department finds or someone reports your employment status, the labor department will take back your employment training voucher and your unemployment certificate, and it is also possible to send a letter to your current work unit to inform you that there is a problem with integrity.

For details, please consult the local social security bureau and the labor security bureau!

I hope my reply is helpful to you!