Very sorry for the inconvenience.Very sorry for the inconveniences caused.

Very sorry for the inconvenience.Very sorry for the inconveniences caused.
"Very sorry for the inconvenience."
Usage: Common in the U.S. and other English-speaking countries.
Grammar: Correct. "Inconvenience" is treated as an uncountable noun, referring to a general disruption or trouble.
Tone: Polished, professional, and widely accepted in formal and informal contexts.
"Very sorry for the inconveniences caused."
Usage: More common in Hong Kong and other regions influenced by British English or translated phrasing.
Grammar: Also correct. "Inconveniences" is the plural form, used when referring to multiple specific issues.
Tone: Slightly more formal or bureaucratic; often found in official notices or customer service communications.
Summary
Both are grammatically correct.
Use "inconvenience" for general apologies.
Use "inconveniences" when referring to multiple distinct problems.
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