What is an invitation visa letter?
In most cases, a visa invitation letter is a written letter from the person you are visiting who lives in the country you are visiting to.
The person you are visiting is inviting you to stay with them and by default they guarantee that you will not stay in that illegally.
As a general rule, if you are visiting a family member or friend, he or she will send you an invitation letter to stay with him or her for specific dates. The visa invitation letter will describe the relationship he or she have with you and state that they will support you financially if you are unable to for the duration of your stay.
When you apply for your travel visa, you must attach this visa letter to the rest of the documents with your visa application. The visa invitation letter is a strong supporter of your application because the visa officer at the embassy will know that you are not just going to the country without a purpose.
The letter will tell them why you are going and who you are seeing. If for any reason, you do not return to your home country within the specified time frame, the authorities will know you are staying illegally, but they will also have the contact information of the person you were staying with. That is how they can find you and take the necessary measures if you overstay your visa.
If you are planning to travel for a specific purpose, you must make sure that you have the correct visa invitation letter. The letter will make it much easier for the Embassy grant you the necessary visa.