This is how to use the word as in business emails and letters.
- As has a similar meaning to because.
- We use as to give the reason for a situation.
- As is more formal than because.
We can use as at the beginning of a sentence:
- As he is on holiday [reason], it is not possible to get his signature on the letter. [situation]
- As we do not have the goods on stock at the moment [reason], we are not able to send your order. [situation]
We can also begin with the situation, then use as in the second half of the sentence:
- It is not possible to get his signature [situation] as he is on holiday [reason].
- We are not able to send your order [situation] as we do not have the goods on stock at the moment. [reason]
